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Basic Javascript PubSub Pattern
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//events - a super-basic Javascript (publish subscribe) pattern | |
var events = { | |
events: {}, | |
on: function (eventName, fn) { | |
this.events[eventName] = this.events[eventName] || []; | |
this.events[eventName].push(fn); | |
}, | |
off: function(eventName, fn) { | |
if (this.events[eventName]) { | |
for (var i = 0; i < this.events[eventName].length; i++) { | |
if (this.events[eventName][i] === fn) { | |
this.events[eventName].splice(i, 1); | |
break; | |
} | |
}; | |
} | |
}, | |
emit: function (eventName, data) { | |
if (this.events[eventName]) { | |
this.events[eventName].forEach(function(fn) { | |
fn(data); | |
}); | |
} | |
} | |
}; |
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